diff --git a/restservice/src/test/java/com/plannaplan/controllers/ExchangeControllerTest.java b/restservice/src/test/java/com/plannaplan/controllers/ExchangeControllerTest.java
index 02b7f7d..1b89a32 100644
--- a/restservice/src/test/java/com/plannaplan/controllers/ExchangeControllerTest.java
+++ b/restservice/src/test/java/com/plannaplan/controllers/ExchangeControllerTest.java
@@ -277,9 +277,19 @@ public class ExchangeControllerTest extends AbstractControllerTest {
 
     @Test
     @DirtiesContext(methodMode = MethodMode.BEFORE_METHOD)
-    public void shouldFailPostDueToGroupAlreadyAccepted(){
-        final User user = this.userService.save(new User(null, null,
-                                "shouldFailPostDueToGroupAlreadyAccepted@ExchangeController.test", UserRoles.STUDENT));
-	    assertTrue(false);
+    public void shouldFailPostDueToGroupAlreadyAccepted() throws Exception{
+        final User user = this.userService.save(new User(null, null, "shouldFailPostDueToGroupAlreadyAccepted@ExchangeController.test", "11111", UserRoles.STUDENT, 320));
+        final String token = this.userService.login(user).getToken();
+        final Groups group = this.groupService.save(new Groups(215, "A2-2", null, 520, WeekDay.TUESDAY, null));
+        final Groups group2 = this.groupService.save(new Groups(216, "A2-3", null, 530, WeekDay.MONDAY, null));
+        final Commision commision = this.commisionService.save(new Commision(user));
+        final Assignment assignment = this.assignmentService.save(new Assignment(group, commision));
+        this.assignmentService.save(new Assignment(group2, commision));
+        this.assignmentService.callAcceptAlgorythm();
+        this.exchangeService.save(new Exchange(assignment, group2));
+
+        MockMvc mockMvc = MockMvcBuilders.webAppContextSetup(webApplicationContext).apply(springSecurity()).build();
+        mockMvc.perform(post(EXCHANGE_ENDPOINT).header("Authorization", "Bearer " +
+        token).contentType(APPLICATION_JSON_UTF8).content("{\"assignment\": "+ assignment.getId() +", \"group\": "+ group2.getId() +" }")).andExpect(status().isBadRequest());
     }
 }